I frequently asked the below question from my students:
'Do I You need Statistics to learn R Programming?'
The answer is, NO. If you want to learn R programming only, Stat is not required. You can be an expert R programmer without knowing anything of Stat because R is a language where lot of APIs are provided for Statistical calculations and Visualization.
But, if you want to get the flavour of Big Data Analysis and Data Visualization, basic Stat knowledge will help. If you want to be a Data Scientist, Stat is very much required. In this case, I will suggest you to take a Stat course before starting R Programming learning or in parallel.